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MetaWindowActor: fix updates with multiple size changes in one frame

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We must set size_changed even if we are frozen, as every window
size change makes the X server drop the pixmap, and we might lose
the information at the next thaw() if the window changes size
twice in one frame (so we would keep drawing with the old pixmap
until something else causes another resize)

Fix done together with Giovanni Campagna <gcampagn@redhat.com>
This commit is contained in:
Owen W. Taylor 2013-09-25 13:13:19 -04:00
parent 2601b30c7e
commit 7b84590c71
1 changed files with 11 additions and 8 deletions
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19
src/compositor/meta-window-actor.c
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@ -1430,6 +1430,16 @@ meta_window_actor_sync_actor_geometry (MetaWindowActor *self,
MetaWindowActorPrivate *priv = self->priv;
MetaRectangle window_rect;
meta_window_get_input_rect (priv->window, &window_rect);
if (priv->last_width != window_rect.width ||
priv->last_height != window_rect.height)
{
priv->size_changed = TRUE;
priv->last_width = window_rect.width;
priv->last_height = window_rect.height;
}
/* Normally we want freezing a window to also freeze its position; this allows
* windows to atomically move and resize together, either under app control,
* or because the user is resizing from the left/top. But on initial placement
@ -1440,17 +1450,10 @@ meta_window_actor_sync_actor_geometry (MetaWindowActor *self,
if (is_frozen (self) && !did_placement)
return;
meta_window_get_input_rect (priv->window, &window_rect);
if (priv->last_width != window_rect.width ||
priv->last_height != window_rect.height)
if (priv->size_changed)
{
priv->size_changed = TRUE;
meta_window_actor_queue_create_pixmap (self);
meta_window_actor_update_shape (self);
priv->last_width = window_rect.width;
priv->last_height = window_rect.height;
}
if (meta_window_actor_effect_in_progress (self))